You're completely missing my point. the same team OKC choked against was the same team that went up 3-1 against the Cavs. From game 5 on out it was a different team. Why? Because of injuries/ suspensions. Yes they're part of the game, but you can't just discount them
As for 2015, It wasn't the same team, as you could clearly see that with Thompson and Dellavedova, two defensively oriented players, the Cavs decided to slow the pace down and pound it inside to Lebron. Had the Cavs still had Love and Irving, I still believe that the Cavs would've lost in 6 or even less, as trying to out run and gun the Warriors is not a good idea. Love in 2015 was not the Love in 2016/2017.
Also of note, the difference between Blatt and Lue's coaching is vastly different and was one of the biggest changes when the Warriors and Cavs met up again in the finals but I feel like as if quite a few people overlook that.